Set of Cowlings for 180mm (7.28″) and 250mm (10) Stern Tunnel, Short Model and Long model, GRP

Add-on Cowls redirect waterflow away from other obstructions on the transom, and they enable installation on shallow draft sterns.

Cowlings, set for Stern Tunnel GRP

Features & Benefits:

  • Angled edges and smooth inside for best water flow
  • Radiused corners prevent turbulence
  • Perfect fit to thruster with matching radius for easy bolt-on fitting
  • Short Model:  made for maximum deflection in a small space, but due to the water being forced to turn rather sharply, it will reduce the performance from the optimum (optimum being a standard stern thruster fitted at full depth) by approximately 15-20%.
  • See Product Sheet for detailed product information.





7.50″(Width), 4.94″(Height), 9.50″(Length)

Approximate Ship Weight (lbs)

Weight 2 lbs
Dimensions 9.50 × 7.50 × 4.94 in


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